"Unbalanced calls to begin/end appearance transitions for DetailViewController" when pushing more than one detail view controller

"The unbalanced calls to begin/end appearance transitions"

occurs when you try and display a new viewcontroller before the current view controller is finished displaying. You can reproduce it by navigating in viewWillAppear.

Basically you are trying to push two view controllers onto the stack at almost the same time. Suggest you maintain a queue in the tableview controller which maintains a list of the detail views which need displaying. Push one at a time on to the stack and check on exit from the current detail view whether there are any queued detail views which need displaying.

This kind of navigation is going to be confusing for the user. It may be better to consider making your detail view support multiple items.

'Unbalanced calls to begin/end appearance transitions for '

Says an animation is started before the last related animation isnt done. So, are you popping any view controller before pushing the new one ? Or may be popping to root ? if yes try doing so without animation. i.e,

[self.navigationController popToRootViewControllerAnimated:NO];

And see if this resolves the issue, In my case this did the trick.

"The unbalanced calls to begin/end appearance transitions" error occurs when you try and display a new viewcontroller before the current view controller is finished displaying.

So, you have to be sure you wont present a new VC until the first finishes its animations.

Use didShowViewController and willShowViewController to block presenting a new VC before the old one completes its animation. It's for backButtonAction who makes a popViewController with Animation: YES.

- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    [self.myNavView.backButton addTarget:self action:@selector(backButtonAction) forControlEvents:UIControlEventTouchUpInside];
}

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    [self.myNavView.backButton removeTarget:self action:@selector(backButtonAction) forControlEvents:UIControlEventTouchUpInside];
}